The Mystery Unit Anticipation Guide is a great way to get students thinking about common themes in mysteries and making predictions about the novel's content.
The Anticipation Guide is intended for students to complete as soon as they've chosen their mystery novel to read independently. It could be adapted for a whole-group novel as well.
Teachers should keep the Anticipation Guide until the students are finished with their novels. The Guide is a great place to start for an end of the unit writing assignment and/or Socratic Seminar.